GBT 18660-2002 封闭管道中导电液体流量的测量电磁流量计的使用方法

《GBT 18660-2002 封闭管道中导电液体流量的测量电磁流量计的使用方法》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、ICs17-120.10N12中华人民共和国国家标准GBIT18660-2002idtISO6817:1992封闭管道中导电液体流量的测量电磁流量计的使用方法Measurementofconductiveliquidflowinclosedconduits-Methodusingelectromagneticflowmeters2002一02一22发布2002一08一01实施中华人民共和匡国家质量监督检验检疫总肩GB/T18660-2002目次前言······································

2、·······。············································，·······················⋯⋯mISO前言····················································································。····················⋯⋯N1范围·····································································

3、············································一12引用标准·········································································································⋯⋯13定义···········。·······。··················································································

4、···········。⋯14符号和单位·····································································································⋯⋯25基本理论····························。···········································································⋯⋯36结构和工作原理···。················

5、···········。。································································。·⋯47安装的设计和实践··························。···········⋯⋯‘二‘二‘二”’‘二‘二‘二”·’‘’‘二’二““‘·’二‘·····⋯⋯78装置标志··································································。························

6、············。⋯⋯n9校准和试验条件····················。·········································································⋯⋯1210不确定度分析······························································································。⋯⋯13附录A<提示的附录)一次装置的结构材料················

7、············。··································。··⋯16附录B(提示的附录)参考文献···················································⋯⋯‘’·‘二“·‘二‘二‘二’··⋯⋯17GB/T18660-2002前言本标准是根据国际标准化组织颁布的标准ISO6817:1992(第一版)"Measurementofconductiveliquidflowinclosedconduits-Methodusingelectromagn

8、eticflowmeters”制定的，在技术内容和编排方式上与国际标准等同。在“引用标准”和其他条文中提到的有关国际标准，凡已被我国采用而制定了国家标准者，均列出国标的代号和名称;凡尚未制定国家标准者，一律用原ISO标准代号。在ISO6817中，"6.4系统输出”规定:"a)模拟直流电流，按照IEC60